1、Designation: A 387/A 387M 06aUsed in USDOE-NE StandardsStandard Specification forPressure Vessel Plates, Alloy Steel, Chromium-Molybdenum1This standard is issued under the fixed designation A 387/A 387M; the number immediately following the designation indicates the yearof original adoption or, in t
2、he case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 Th
3、is specification2covers chromium-molybdenum alloysteel plates intended primarily for welded boilers and pressurevessels designed for elevated temperature service.1.2 Plates are available under this specification in severalgrades having different alloy contents as follows:Nominal NominalChromium Moly
4、bde-numGrade Content, % Content, %2 0.50 0.5012 1.00 0.5011 1.25 0.5022, 22L 2.25 1.0021, 21L 3.00 1.005 5.00 0.509 9.00 1.0091 9.00 1.001.3 Each grade except Grades 21L, 22L, and 91 is availablein two classes of tensile strength levels as defined in the TensileRequirements tables. Grades 21L and 22
5、L are available only asClass 1. Grade 91 is available only as Class 2.NOTE 1Grade 911, previously covered by this specification, is nowcovered by Specification A 1017/A 1017M.1.4 The maximum thickness of plates is limited only by thecapacity of the composition to meet the specified mechanicalpropert
6、y requirements.1.5 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem are not exact equivalents. Therefore, each system mustbe used independently of the other. Combinin
7、g values from thetwo systems may result in nonconformance with this specifi-cation.2. Referenced Documents2.1 ASTM Standards:3A 20/A 20M Specification for General Requirements forSteel Plates for Pressure VesselsA 307 Specification for Carbon Steel Bolts and Studs, 60000 PSI Tensile StrengthA 435/A
8、435M Specification for Straight-Beam UltrasonicExamination of Steel PlatesA 577/A 577M Specification for Ultrasonic Angle-BeamExamination of Steel PlatesA 578/A 578M Specification for Straight-Beam UltrasonicExamination of Plain and Clad Steel Plates for SpecialApplicationsA 1017/A 1017M Specificati
9、on for Pressure Vessel Plates,Alloy Steel, Chromium-Molybdenum-Tungsten3. General Requirements and Ordering Information3.1 Material supplied to this material specification shallconform to Specification A 20/A 20M. These requirementsoutline the testing and retesting methods and procedures,permissible
10、 variations in dimensions and weight, quality andrepair of defects, marking, loading, etc.3.2 Specification A 20/A 20M also establishes the rules forthe ordering information that should be complied with whenpurchasing material to this specification.3.3 In addition to the basic requirements of this s
11、pecifica-tion, certain supplementary requirements are available whenadditional control, testing, or examination is required to meetend use requirements. These include:3.3.1 Vacuum treatment,3.3.2 Additional or special tension testing,3.3.3 Impact testing, and3.3.4 Nondestructive examination.1This sp
12、ecification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.11 on Steel Plates for Boilers and Pressure Vessels.Current edition approved Oct. 1, 2006. Published October 2006. Originallyapproved in 1955. L
13、ast previous edition approved in 2005 as A 387/A 387M 05a.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-387/SA-387M in Section II of that Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.
14、org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United Stat
15、es.TABLE1ChemicalRequirementsElementComposition,%GradeandUNSNumberGrade2S50460Grade12K11757Grade11K11789Grade22K21590Grade22LK21590Grade21K31545Grade21LK31545Grade5S50200Grade9K90941Grade91K91560Carbon:Heatanalysis0.050.210.050.170.050.170.050.15A0.10max0.050.15A0.10max0.15max0.15max0.080.12Producta
16、nalysis0.040.210.040.170.040.170.040.15A0.12max0.040.15A0.12max0.15max0.15max0.060.15Manganese:Heatanalysis0.550.800.400.650.400.650.300.600.300.600.300.600.300.600.300.600.300.600.300.60Productanalysis0.500.880.350.730.350.730.250.660.250.660.250.660.250.660.250.660.250.660.250.66Phosphorus,max:Hea
17、tanalysis0.0350.0350.0350.0350.0350.0350.0350.0350.0300.020Productanalysis0.0350.0350.0350.0350.0350.0350.0350.0350.0300.025Sulfur,max:Heatanalysis0.0350.0350.0350.0350.0350.0350.0350.0300.0300.010Productanalysis0.0350.0350.0350.0350.0350.0350.0350.0300.0300.012Silicon:Heatanalysis0.150.400.150.400.
18、500.800.50max0.50max0.50max0.50max0.50max1.00max0.200.50Productanalysis0.130.450.130.450.440.860.50max0.50max0.50max0.50max0.55max1.05max0.180.56Chromium:Heatanalysis0.500.800.801.151.001.502.002.502.002.502.753.252.753.254.006.008.0010.008.009.50Productanalysis0.460.850.741.210.941.561.882.621.882.
19、622.633.372.633.373.906.107.9010.107.909.60Molybdenum:Heatanalysis0.450.600.450.600.450.650.901.100.901.100.901.100.901.100.450.650.901.100.851.05Productanalysis0.400.650.400.650.400.700.851.150.851.150.851.150.851.150.400.700.851.150.801.10Nickel,max:Heatanalysis.0.40Productanalysis.0.43Vanadium:He
20、atanalysis.0.04max0.180.25Productanalysis.0.05max0.160.27Columbium:Heatanalysis.0.060.10Productanalysis.0.050.11Boron:Heatanalysis.Productanalysis.Nitrogen:Heatanalysis.0.0300.070Productanalysis.0.0250.080Aluminum,max:Heatanalysis.0.02Productanalysis.0.02Titanium,max:Heatanalysis.0.01Productanalysis
21、.0.01Zirconium,max:Heatanalysis.0.01Productanalysis.0.01AThecarboncontentforplatesover5in.125mminthicknessis0.17maxonproductanalysis.A 387/A 387M 06a23.4 The purchaser is referred to the listed supplementaryrequirements in this specification and to the detailed require-ments in Specification A 20/A
22、20M. If the requirements of thisspecification are in conflict with the requirements of Specifi-cation A 20/A 20M, the requirements of this specification shallprevail.4. Manufacture4.1 Steelmaking PracticeThe steel shall be killed.5. Heat Treatment5.1 Except for Grade 91, all plates shall be thermall
23、y treatedeither by annealing, normalizing- and -tempering, or, whenpermitted by the purchaser, accelerated cooling from theaustenitizing temperature by air blasting or liquid quenching,followed by tempering. Minimum tempering temperaturesshall be as follows:Grade Temperature, F C2, 12, and 11 1150 6
24、2022, 22L, 21, 21L, and 9 1250 6755 1300 7055.1.1 Grade 91 plates shall be normalized at 1900 to 1975F1040 to 1080C and shall be tempered at 1350 to 1470F730 to 800C.5.2 Grade 5, 9, 21, 21L, 22, 22L, and 91 plates orderedwithout the heat treatment required by 5.1 shall be furnished ineither the stre
25、ss-relieved or the annealed condition.5.3 For plates ordered without the heat treatment requiredby 5.1, heat treatment of the plates to conform to 5.1 and toTable 2 or Table 3, as applicable, shall be the responsibility ofthe purchaser.6. Chemical Requirements Chemical Requirements6.1 The steel shal
26、l conform to the requirements as tochemical composition shown in Table 1 unless otherwisemodified in accordance with Supplementary Requirement S17,Vacuum Carbon-Deoxidized Steel, in Specification A 20/A 20M for grades other than Grade 11.7. Metallurgical Structure7.1 Austenitic Grain SizeGrade 2 mat
27、erial shall have acoarse austenitic grain size.8. Mechanical Requirements8.1 Tension Test Requirements:8.1.1 The material as represented by the tension test speci-mens shall conform to the applicable requirements of Table 2or Table 3, as specified on the order.8.1.2 Adjustment of the percentage elon
28、gation requirementsis permitted in accordance with Specification A 20/A 20M forplates up to34 in. 20 mm inclusive, in thickness when an 8-in.200-mm gage length is used.9. Marking9.1 In addition to the marking required in SpecificationA 20/A 20M, each plate shall be legibly stamped or stenciled,depen
29、ding upon the ordered thickness, with the letter A forannealed, N for normalized and tempered, and Q for acceler-ated cooled and tempered, as applicable.10. Keywords10.1 alloy steel; alloy steel plate; pressure containing parts;pressure vessel steels; steel plates; steel plates for pressurevesselsTA
30、BLE 2 Tensile Requirements for Class 1 PlatesGrades 2 and 12 Grade 11 Grades 22, 21, 5, 9, 21L, 22LTensile strength, ksi MPa 55 to 80 380 to 550 60 to 85 415 to 585 60 to 85 415 to 585Yield strength, min, ksi MPa 33 230 35 240 30 205Elongation in 8 in. 200 mm, min, %A18 19 .Elongation in 2 in. 50 mm
31、, min, %A22 22 18Reduction of area, min, % . . 45B40CASee Specification A 20/A 20M, elongation adjustments.BMeasured on round test specimens.CMeasured on flat specimen.A 387/A 387M 06a3SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the order. A list of stand
32、ardizedsupplementary requirements for use at the option of the purchaser is included in SpecificationA 20/A 20M. Several of those considered suitable for use with this specification are listed below bytitle. Other tests may be performed by agreement between the supplier and the purchaser.S1. Vacuum
33、Treatment,S2. Product Analysis,S3. Simulated Post-Weld Heat Treatment of MechanicalTest Coupons,S4.1 Additional Tension Test,S5. Charpy V-Notch Impact Test,S6. Drop Weight Test (for Material 0.625 in. 16 mm andover in Thickness),S7. High-Temperature Tension Test,S8. Ultrasonic Examination in accorda
34、nce with Specifica-tion A 435/A 435M,S9. Magnetic Particle Examination,S11. Ultrasonic Examination in accordance with Specifica-tion A 577/A 577M,S12. Ultrasonic Examination in accordance with Specifica-tion A 578/A 578M, andS17. Vacuum Carbon-Deoxidized Steel.ADDITIONAL SUPPLEMENTARY REQUIREMENTSIn
35、 addition, the following supplementary requirements are suitable for this application. S62 and S63are applicable for Grades 22 and 21 only.S53.When specified by the purchaser, the axis of the tensile andimpact test specimens shall come from the mid-thickness ofeach plate tested, in lieu of midway be
36、tween the centerthickness and the top or bottom surface of the plate.S60. Restricted CarbonS60.1 The maximum carbon content of Grade 5 shall be0.10 %.S62. Temper Embrittlement FactorS62.1 The composition of the steel, based on heat analysis,shall be restricted in accordance with the following equati
37、ons:J 5Si 1 Mn!3P 1 Sn!3104#150 Si, Mn, P and Sn in wt %!Cu#0.20%Ni#0.30%S62.1.1 Lower values of J, Cu, and Ni can be specified byagreement between purchaser and the supplier.S62.1.2 When so specified by the purchaser, the maximumvalue of J shall not exceed 100.S62.1.3 The values of J shall be repor
38、ted.S62.1.4 If the plates are repaired by welding, the composi-tion of the weld deposit shall be restricted in accordance withthe following equations:X 510P 1 5Sb 1 4Sn 1 As!/100#15 P, Sb, Sn and As in ppm!Cu#0.20%Ni#0.30%S62.1.5 The values of X shall be reported.S63. Impact Properties After Step Co
39、olingS63.1 The Charpy V-notch impact properties shall be deter-mined as follows:TABLE 3 Tensile Requirements for Class 2 PlatesAGrade 2 Grade 11 Grade 12 Grades 22, 21, 5,9Grade 91Tensile strength, ksi MPa 70 to 90 75 to 100 65 to 85 75 to 100 85 to 110485 to 620 515 to 690 450 to 585 515 to 690 585
40、 to 760Yield strength, min, ksi MPa/(0.2 %offset)45 310 45 310 40 275 45 310 60 415Elongation in 8 in. 200 mm, min, %B18 18 19 . .Elongation in 2 in. 50 mm, min, %B22 22 22 18 18Reduction of area, min, % . . . 45C.40DANot applicable to annealed material.BSee Specification A 20/A 20M, elongation adju
41、stments.CMeasured on round test specimens.DMeasured on flat specimen.A 387/A 387M 06a4S63.1.1 A sufficient amount of Charpy V-notch test speci-mens shall be taken from the same location from a plate fromeach heat of steel to construct two transition temperaturecurves.S63.1.2 The test specimens for o
42、ne transition temperaturecurve shall be given the minimum post weld heat treatment(PWHT) cycle specified by the purchaser.S63.2 The test specimens for the other transition tempera-ture curve shall be given the PWHT cycle specified in S63.1.2plus the following step cooling heat treatment:Hold at 1100
43、F (593C) for 1 h, then cool at 10F (5.6C)/hto 1000F (538C).Hold at 1000F (538C) for 15 h, then cool at 10F (5.6C)/hto 975F (524C).Hold at 975F (524C) for 24 h, then cool at 10F (5.6C)/hto 925F (496C).Hold at 925F (496C) for 60 h, then cool at 5F (2.8C)/hto 875F (468C).Hold at 875F (468C) for 100 h,
44、then cool at 50F(27.8C)/h to 600F (315C).Cool in still air.S63.3 Test the Charpy V-notch test specimens in accordancewith Test Methods and Definitions A 370 to determine the 40ft-lbs (55 J) transition temperature from each transition tem-perature curve using a set of three test specimens at each tes
45、ttemperature. The test temperatures shall include tests on theupper and lower shelves and a minimum of four intermediatetemperatures.S63.4 The following requirements shall be met.vTr40 12.5DvTr40#50FvTr55 12.5DvTr55#10Cwhere:vTr40 (vTr55) = the 40 ft-lbs (55 J) transition tempera-ture of the materia
46、l subjected to theminimum PWHT specified by the pur-chaser.DvTr40 (DvTr55) = the shift of the 40 ft-lbs (55 J) transi-tion temperature the of the step cooledmaterial. (The 40 ft-lbs (55 J) transi-tion temperature the of the step cooledmaterial minus that of the materialsubjected to the minimum PWHTo
47、nly).S63.5 The 40 ft-lbs (55 J) transition temperatures for thetwo material conditions shall be reported.SUMMARY OF CHANGESCommittee A01 has identified the location of the following changes to this standard since the last issue (A387/A 387M 06) that may impact the use of this standard. (Approved Oct
48、ober 1, 2006.)(1) Added Supplementary Requirement S53 prior to the noteclarifying the use of other additional supplementary require-mentsFIG. S1.1 Transition Temperature Curves Before and After StepCool Heat TreatmentA 387/A 387M 06a5Committee A01 has identified the location of the following changes to this standard since the last issue (A 387/A 387M 05a) that may impact the use of this standard. (Approved March 1, 2006.)(1) Revised chemistry of Grade 91 and removed Tungsten as alisted element in Table 1.Committee A01 has identified the location
